Here is a great list of Irish music blogs which I found on a number of blogs all referencing Rick O’Shea.

http://egoeccentric.blogspot.com Egoeccentric
http://iprefertheobscureremix.wordpress.com I Prefer the Obscure Mix
http://nialler9.com/blog Nialler9
http://kilkennymusic.com Kilkenny Music
http://www.ireland.com/blogs/ontherecord On the Record

http://indielimerick.blogspot.com Indie Limerick
http://cluas.com/indie-music/Blogs/Key_Notes.aspx Key Notes
http://indiehour.wordpress.com The Indie Hour
http://mattvinyl.blogspot.com Matt Vinyl
http://musicroad.blogspot.com Music Road

http://theredscrapbook.blogspot.com The Red scrapbook
http://www.testindustries.com Test Industries
http://wordpress.hotpress.com/offherrocker Off the Rocker
http://sineadgleeson.com/blog Sinead Gleeson
http://mp3hugger.com MP3 Hugger

http://unarocks.blogspot.com Una Rocks
http://thetorturegarden.blogspot.com The Torture Garden
http://ronanfitzgerald.net/houseisafeeling House is a Feeling
http://magooo.org Magoo
http://bbc.co.uk/blogs/radioulster/stuart_bailie Stuart Bailie

http://donal.ie Donal O’Caoimh
http://digitalsole.info Digital Sole
http://cluas.com/indie-music/Blogs/French_Letter.aspx French Letter
http://cubikmusik.typepad.com Cubik Music
http://cheebah.net Cheebah
http://onavery.blogspot.com Asleep on the Compost Heap

And Nialler9 added

http://hifipopcorn.blogspot.com/
http://graveyardshiftshane.wordpress.com/
http://shapesandshadows.blogspot.com/
http://thrillpier.blogspot.com/
http://soundtracksforthem.blogspot.com/
http://www.weareie.com/